drag-and-drop-autoscroll-frameset.html

<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
  window.onload = () => {
    fetch_tests_from_window(frames[0]);
  }
</script>
<frameset cols="50%,50%">
    <frame src="resources/drag-and-drop-autoscroll-frame.html">
    <frame>
</frameset>

chromium/third_party/blink/web_tests/fast/events/drag-and-drop-autoscroll-frameset.html